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SEARCH KEYWORD -- EMPTY INTERFACE

  GO AHEAD, SELL MY DATA

More and more I see articles popping up that bash social networks for "violating" our privacy and selling our information to advertisers. Inevitably, Facebook has been at the center of many of these "scandals". Today on HN I came across this interviewwith Disconnect co-founder Casey Oppenheim and I just don't get it.In it, he bashes Facebook (and other online advertisers) for using our information in order to serve up targeted ads. He points out that many of the " “free” service...

   Social network,Facebook,Privacy,Data,Ads     2011-10-19 14:12:08

  Significance and use of do{...}while(0)

In some Linux kernel and other open source codes, we can see some codes like below: do{ ... }while(0) This code snippet is not a loop, it seems there is no significance of using do...while this way, then why should we use it? In fact, the significance of do{...}while(0) is better than optimizing your code. After some research, we summarize some benefits of it. 1. Help define complex macro to avoid error #define DOSOMETHING()\ foo1();\ foo2(); The me...

   do{...}while(0), optimization     2012-10-21 21:13:22

  When and Where to Use Pointers in Go

When declaring variables in Go, we usually have two syntax options: In some scenarios, pointers; in others, reference; sometimes, either. It’s great to have choices, but it is also confusing sometimes as to which one in which scenario. To be more reasonable in choice-making, I started from pointers, walked through their natures, and summarized some rules in using them in Go. from unsplash, Jordan Ladikos Pointers Go has pointers. A pointer holds the memory address of a ...

   POINTER,GOLANG     2022-05-01 02:24:43

  GUI vs CLI: Operation vs Expression

Consider this user interface for a car:The goal of these interfaces is to make you operate something, and operate it efficiently and safely. The grooves and clicks and limits constrain the range of motion and the number of choices. The visual look heavily hints at how to actively use it. They are usually not hard to learn. More importantly, the learning curve plateaus. Once you learn how to drive a car, there’s not much progression after that. Boundedness is ...

   GUI,CLI,Operation,Expression,Programmer,IDE     2011-10-25 10:31:26

  10 major updates of Windows 8.1

Last night, the 2013 Microsoft Build Developer Conference started in San Francisco. The highlight of the first day is Microsoft CEO Steve Ballmer announced the release of Windows 8.1 Preview . The final version will be released in November and he also mentioned that there would be over 300 updates on the new OS. Now let's summarize 10 major updates of the new OS. 1. Classical desktop mode After getting a lot of feedback from users, Microsoft adds a new setting. Users can choose to start in clas...

   Windows 8.1,Build     2013-06-27 05:45:02

  Find max subarray of an array

In computer science, the maximum subarray problem is the task of finding the contiguous subarray within a one-dimensional array of numbers (containing at least one positive number) which has the largest sum. For example, for the sequence of values −2, 1, −3, 4, −1, 2, 1, −5, 4; the contiguous subarray with the largest sum is 4, −1, 2, 1, with sum 6. The problem was first posed by Ulf Grenander of Brown University in 1977,...

   Max Subarray, Divide and conquer,Kadane     2013-04-22 11:50:35

  Windows 8 first impressions: It's a game changer

NEW YORK (CNNMoney) -- The PC needs saving. With Windows 8, Microsoft believes it has the magic cure.It just might. I've been testing a consumer preview version of Windows 8 for the past week, and it's unlike anything I've ever seen in a PC operating system.The stunning "Metro" interface just begs you to touch and interact with it. Beautifully designed apps, ultra-simple navigation, and instinctive commands make it hard to believe Metro came from the same company that brought us Windows Vista...

   Windows 8,Hands on,Game changer,Impression     2012-03-17 04:26:54

  Ways to check existence of JavaScript object

The design of JavaScript is not so sophisticated. It's very easy for us to make mistakes if we are not very careful when using JavaScript. For example, to check the existence of JavaScript object. Now we want to check whether a global object myObj exists or not, if it doesn't exist, we declare it. The pseudo code for this is : if(myObj not exist){ declare myObj; } You may think it's very easy to write the code. In fact, it is much more difficult than we may think. Juriy Zaytsev says there are m...

   JAVASCRIPT,OBJECT,EXISTENCE     2020-09-12 02:14:02

  Using JSON in PHP

Currently JSON has become one of the most popular data exchange formats. Many website APIs support it. Since PHP 5.2, PHP provides json_encode() and json_decode() method to handle JSON encoding and decoding.1. json_encode()This function is used to transform array and objects to JSON format. First let's look one array example.        $arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5); 　　echo json_encode($arr);the result is{"a":1,"b"...

   JSON,PHP,json_decode(0,json_encode()     2012-05-06 06:04:42

  Set Theory in C++11

Have you ever felt the need to perform set theoretic operations on types? Not really? Me neither, but I thought it’s a fun thing to try out. So, if you ever feel the need of using type sets, C++11 makes it quite easy to do so. Especially variadic templates allow for a much more condensed syntax compared to type list constructs formerly used. (Disclaimer: This is rather a proof of concept, but maybe somebody comes up with a useful scenario.) Let’s start by d...

   C++,set theory,Math     2012-03-11 13:15:55

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